| 摘要 |
The present invention relates to a bobbin of a speaker device. The bobbin of the speaker device according to the present invention includes an inner circumference and an outer circumference. A voice coil is wound around at least part of the outer circumference. The bobbin includes: a heat dispersion layer which forms the outer circumference, has a first heat conductivity, and disperses heat generated from the voice coil on a surface through conduction; and a heat blocking layer which forms the inner circumference, has a second heat conductivity which is lower than the first heat conductivity, and blocks the radiation of the heat from the voice coil to a magnetic circuit. |
